Sole trimm-ing and channeling machine



(No Model.) 2 Sheets-Sheet 1'.

J. O. IVORY. SOLE TRIMMING AND GHANNELING MACHINE. No. 361,159. Patented Apr. 12, 1887 W li Ew Q %\v/////A/m/W M N m V/ N F w Z? k 2 Sheets-Sheet 2.

(No Model.)

I J. O. IVO Y, SOLE TRIMMING AND OHANNELING MACHINE. No; 361,159.

Patented Apr.

UNITED STATES PATENT OFFICE.

JOHN o. IVORY, OF SOMERVILLE, ASSIGNOR, BY DIRECT AND MESNE ASSIGN- MENTS, OF PART TO JAMES N. MOULTON, or HAVERHILL, AND EDWARD 1 THAYER, OF BOSTON, MASSACHUSETTS.

SOLE TRlMM lNG AND cHAN NELlNG MACHINE.

SPECIFICATION forming part of Letters Patent No. 361,159, dated April 12, 1887.

Application filed August '23, 1886.

Serial No. 211,624. (No model.)

To all whom it may concern.-

Be it known that I, JOHN C. IVORY, of Somerville, in the county of Middlesex and State of Massachusetts, have invented certain new and useful Improvements in Sole Trimming and Channeling Machines, of which the following is a specification.

This invention relates to that class of machines for trimming or rounding boot or IO shoe soles and channeling the same in which the sole to be trimmed and channeled is clamped upon a stationary sole-shaped pattern, and the trimming'and channeling knives are caused to move around the said pattern, I 5 said knives being .mounted on a frame swiveled to swing on a vertical axis on a slide or carriage that is capable of reciprocating horizontally, so that the knives can turn so as to present themselves at any desired angle to the sole-edge in their circuit around the shoe-pattern, and can also move back and forth to conform to the contour of the pattern, said slide being pressed toward the pattern by springs which permit the slide to yield as may be re quired by the pattern. i

The invention consists in the several improvements in machines of the class above named, which I will now proceed to describe and claim.

Of the accompanying drawings, forming a part of this specification, Figure 1 represents a side elevation of my improved machine. Fig. 2 represents a vertical section of the same. Fig. 3 represents a top plan view of the part of 3 5 the machine below the line 00 00, Fig. 1. Fig.

4 represents a side elevation. Fig. 5 represents a cross-section of a sole.

The same letters of reference indicate the same parts in all the figures of the accompanying drawings.

' In the drawings, (t represents a movable frame or casing having on its upper portion bearing formed in the end of an overhanging arm, 0, affixed to said slide b, the frame 0 (1 represents a cutting-blade formed on the end of a shank, d, which is fitted to slide horizontally in dovetail guides in the lower portion of the swinging frame 0, and is pressed forward by a spring, e, located in a cavity in said frame. The cutting-edge of the blade d is formed to trim the edge of a sole, S, said sole being clamped upon a stationary pattern, S, located upon the bed or table of the machine, and around which pattern the blade cl is caused to travel by the means usual in this class of machines.

To the under side of the slide bis affixed a rack, f, which meshes with a cog-wheel, f, on a shaft, ffijournaled in the base or casing. To said shaft are affixed the inner ends of two coiled springs, g g, the outer ends of said springs being attached to the base a of the casing or frame a, and the springs being so arranged that they have a constant tendency to rotate the wheel f in the direction indicated by the arrow in Fig. 2, and to thereby move the slide 1) outwardly so as to cause the shoulder I) to bear with a constant yielding pressure against the pattern 8.

The shoulder b is slightly concave, as shown in Fig. 3, so that it has an extended bearing on the edge of the pattern 8, the convex portions of the pattern approximately fitting the concavity of the shoulder. I

It will be seen that as the frame or casing a and its connected parts are being carried around the pattern and the sole clamped to the pattern the knife is presented at the proper operative angle to the edge of the sole by the bearing of the shoulder b onthe edge of the pattern. The knife therefore trims the sole in conformity to the pattern, its cutting-edge being pressed continuously against the pattern by, the means described.

it represents the channeling-knife, which is attached by bolts h h to a holder, I, adapted to slide vertically on the upper end of the swinging frame a. Said holder I is in this case composed of two side plates, it", at opposite sides of the frame, and a front plate, t", connecting said side platesyi i the channelingbeing capable of rotating as on a vertical axis."

knife being attached by the said bolts h h to the side plate, i. A spring, k, attached to the rear portion of the swinging frame 0,

presses downwardly upon the holder I, and, when the latter is not supported in the raised position shown in Figs. 1 and 2 by the latch devices, hereinafter described, forces said holder and the channeling-knife downwardly upon the sole. The holder I is guided in its upward and downward movements by a stud, l, affixed to the swinging frame 0, and a vertical slot, Z, in the plate t, through which said stud projects.

A lever, on, is pivoted on the stud Z and extends backwardly under a stud, m, on the knife-holder I. When said lever is moved upwardly to the position shown in Fig. 1, it engages the stud m, and thereby raises the holder I and its knife h. A spring-latch, n, attached to one side of the swinging frame 0, engages the rear end of the lever in when the latter is raised, and holds it and the holder and knife in the raised position shown. \Vhen the latch n is disengaged from the lever m, the latter drops, and the holder 1 is forced downwardly by the spring it until the knife h bears upon the upper surface of the sole S.

The edge-trimming knife d has an inclined arm, d which extends upwardly and backwardly from its cuttingedge. When the channeling-knife his forced downwardly, as above described, it strikes said inclined arm and forces the edge-trimming knife backwardly out of the way, as shown in Fig. 4.

The channeling-knife is inclined downwardly on its under side from its back to its cutting-edge, so that when it is moved to bear against the upper surface of the sole the cutting-edge of the knife will move downwardly into the sole until its downward motion is arrested by the contact of a lip, 1*, on the knifeholder with the upper surface of the sole, the knife being thus caused to cut downwardly from 2 to 3, Fig. 1, into the sole from its up- 4 5 per surface, and then, after its downward n10- tion is stopped, to cut a channel in the edge of the sole between and parallel with the upper and lower surfaces thereof, said channel extending entirely around the sole S and forming a lip or flap which may be turned upwardly, as shown in Fig. 5, so that the upper nlilay be stitched to said flap in making a turned The shaft to which the springs g g and wheel f are attached is squared at one end, so that it may be turned by a key, and has at its other end a ratchet, r, with which engages a pawl, 0-. This ratchet 1' and pawl i" serve not only to prevent the springs g g from unwinding and the slide b from moving from a forced position,

when so desired, but also to regulate the pressure of the shoulder of the slide 1) upon the edge of the sole-pattern, as by operating the arbor f'",so as to more tightly wind upon it the springs 6 g g, the greater will be the pressure against the edge of the sole-pattern when the pawl 0' has been released from the ratchet r, and the slide allowed to be impelled forward by the action of the springs thus released. In like manner, by operating the arbor so as to unwind the springs gg, will the pressure upon the edge of the sole be lessened. The operator is thus enabled to regulate the pressure against the edge of the sole, and also to entirely withdraw the slide back from the pattern when such movement is desirable.

The operation, as a whole, is as follows: The sole to be trimmed is clamped to the pattern, and the channeling-knife being raised so that the trimming knife is held forward by its spring in position to act on the sole-edge, the pawl is raised, motion is given to the frame or casing,aud the trimming-knife is thus caused to pass around the edge of the sole and trim it. When the sole has thus been trimmed, the operator moves the latch n to release the knifcholder and its channeling-knife, and the latter drops, displaces the trimming-knife, and enters and channels the sole,as already described. After the channeling operation, the operator raises the channeling-knife by means of the lever at until the latter is engaged and held by the latch.

If desired, the trimming-knife may be formed to cut a differentlyshaped channel and flap.

I claim- 1. The combination of a stationary pattern, the rotary base or casing, the slide fitted to move in guides on said base, a coiled spring or springs within said base attached to the actuating-shaft, and devices actuated by said springs to press the slide forward against the pattern, a frame mounted to swing or turn on a substantially vertical axis on said slide, and the trimming and channeling knives carried by said swinging frame, and mechanism to give motion to the said knife-supporting frame, as set forth.

2. The combination of a stationary pattern, the movable base or casing, the spring-impelled slide adapted to reciprocate in said base and normally pressed against the pattern, the frame adapted to swing on said slide, the trimming-knife adapted to slide in the swing ing frame and pressed forward by a spring, and means to move the base or casing, as set forth.

3. The combination of the pattern, the spring-pressed slide, the swinging frame on said slide, the spring-pressed trimming-knife having an inclined arm, the vertically-mow able channeling-knife, a spring to depress said knife and cause it to displace the trimmingknife, and means for raising and locking the channeling-knife, as set forth.

4. The combination of the pattern, the spring-pressed slide, the swinging frame, the spring-pressed sliding trimming-knife, the channeling-knife, the knife-holder adapted to move vertically on the swinging frame, means to limit the vertical movements of said holder, the spring to depress the holder, and the lever and latch whereby said holder may be held in an elevated position.

pawl whereby the springs may be held, and the cog-wheel on said shaft engaging with a rack on said slide, as set forth.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses, this 18th day of August,

Witnesses:

O. F. BROWN,

JOHN C. IVORY.

A. D. HARRISON. 

